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- # get-caller-file
- [](https://travis-ci.org/stefanpenner/get-caller-file)
- [](https://ci.appveyor.com/project/embercli/get-caller-file/branch/master)
- This is a utility, which allows a function to figure out from which file it was invoked. It does so by inspecting v8's stack trace at the time it is invoked.
- Inspired by http://stackoverflow.com/questions/13227489
- *note: this relies on Node/V8 specific APIs, as such other runtimes may not work*
- ## Installation
- ```bash
- yarn add get-caller-file
- ```
- ## Usage
- Given:
- ```js
- // ./foo.js
- const getCallerFile = require('get-caller-file');
- module.exports = function() {
- return getCallerFile(); // figures out who called it
- };
- ```
- ```js
- // index.js
- const foo = require('./foo');
- foo() // => /full/path/to/this/file/index.js
- ```
- ## Options:
- * `getCallerFile(position = 2)`: where position is stack frame whos fileName we want.
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